I would think <span><span>6a/</span><span><span><span>27/5</span></span></span></span><span>=<span><span><span>10/9</span></span><span>a</span></span></span>
Answer:
c
Step-by-step explanation:
Answer:
- The graph cannot represent a normal density function because it is not symmetric.
Step-by-step explanation:
The second and third descriptions are false on their face: neither describes a characteristic of the graph shown. A normal distribution is symmetric about the mean; this graph is not symmetric, so cannot represent a normal distribution.
Confidence interval is given by the formula
x ⁺/₋ z* ( σ/ (√n) )
Where:
x = the sample mean = 130
z* = the z-value for 90% confidence = 1.645
σ = standard deviaton = 7
n = sample size = 145
Substituting these values into the formula gives:
130 ⁺/₋
130 ⁺/₋ 0.956
So the interval is in between (130 - 0.956) and (130 + 0.956)
Answer:
-5.2
Step-by-step explanation:
mark me brainliest!